//
// Created by deepin on 2020/11/2.
//

#include <iostream>
using namespace std;
/**
 *  内联函数不能进行递归操作
 * @param x
 * @return
 */
inline double square (double x)
{
  return x*x;
}
/*
int main ()
{
   double a,b,c = 13.0;
   a = square(5.0);
   b = square(4.5+7.5);
   c = square(c++);
   return 0;
}*/
